| IATA | ICAO | Airport name | Location |
|---|
| KAA | | Kasama Airport | Kasama, Zambia |
| KAC | OSKL | Al Qamishli Airport | Kameshli, Syria (Qamishli/Kameshli/Kamishly) |
| KAG | RKNN | गैंगनुएंग हवाईअड्डा | कैंगनुंग, दक्षिण कोरिया |
| KAJ | EFKI | काजानी हवाईअड्डा | काजानी, फिनलैंड |
| KAL | PAKV | कैलटग हवाईअड्डा | कैलटग, अलास्का, संयुक्त राज्य अमेरिका |
| KAO | EFKS | कुसामो हवाईअड्डा | कुसामो, फिनलैंड |
| KAQ | BGKS | Kangersuatsiaq Heliport | Kangersuatsiaq, Greenland |
| KAR | SYKM | कामारैंग हवाईअड्डा | कामारैंग , गुयाना |
| KAT | NZKT | काईताईया हवाईअड्डा | काईताईया, न्यूज़ीलैण्ड |
| KBA | GFKB | कबाला हवाईअड्डा | कबाला, सिएरा लियोन |
| KBI | FKKB | क्रिबी हवाईअड्डा | क्रिबी, कैमरून |
| KBK | VEKI | कुशीनगर हवाईअड्डा | कुशीनगर, भारत |
| KBL | OAKB | काबुल अंतरराष्ट्रीय हवाईअड्डा | काबुल, अफगानिस्तान |
| KBP | UKBB | Boryspil हवाईअड्डा | Kiev, Ukraine |
| KBR | WMKC | Sultan Ismail Petra Airport | Kota Bharu, Malaysia |
| KBS | GFBO | बो हवाईअड्डा | बो, सिऐरा लिओन |
| KBV | VTSG | क्राबी हवाईअड्डा | क्राबी, थाईलैण्ड |
| KCB | | Tepoe Airstrip | Kasikasima, Suriname |
| KCH | WBGG | Kuching International Airport | Kuching, Sarawak, Malaysia |
| KCL | | Chignik Lagoon Airport | Chignik Flats, Alaska, United States |
| KCM | LTCN | Kahramanmaras Airport | Kahramanmaras, तुर्की |
| KCR | | Colorado Creek Airport | Colorado Creek, Alaska, संयुक्त राज्य अमेरिका |
| KCT | VCII | Koggala Airport | Galle, Sri Lanka |
| KCZ | | Kochi Ryoma Airport | Kochi, जापान |
| KDA | GOGK | Kolda North Airport | Kolda, Senegal |
| KDC | DBBK | Kandi Airport | Kandi, Benin |
| KDG | | Kardjali Airport | Kardjali, Bulgaria |
| KDH | OAKN | Kandahar International Airport | Kandahar, Afghanistan |
| KDK | PAKD | Kodiak Municipal Airport | Kodiak, Alaska, United States |
| KDL | EEKA | Kärdla Airport | Kärdla, Hiiumaa, Estonia |
| KDM | | Kaadedhdhoo Airport | Kaadedhdhoo Island, Gaafu Dhaalu Atoll, Maldives |
| KDO | | Kadhdhoo Airport | Kadhdhoo Island, Laamu Atoll, Maldives |
| KEB | | English Bay Airport | English Bay, Alaska, United States |
| KED | GQNK | Kaedi Airport | Kaedi, Mauritania |
| KEF | BIKF | Keflavík International Airport | Keflavík (near Reykjavík), Iceland |
| KEJ | UNEE | Kemerovo Airport | Kemerovo, Kemerovo Oblast, Russia |
| KEK | | Ekwok Airport | Ekwok, Alaska, United States |
| KEL | | Kiel Holtenau Airport | Kiel, Germany |
| KEN | GFKE | Kenema Airport | Kenema, Sierra Leone |
| KEP | | Mahendra Airport | Nepalgunj, Nepal |
| KEZ | | Ali Al Salem Airport | Ali Al Salem, Kuwait |
| KFA | GQNF | Kiffa Airport | Kiffa, Mauritania |
| KFS | | Uzunyazi Airport | Kastamonu, Turkey |
| KFP | PAKF | False Pass Airport | Aleutians East Borough, Alaska, United States |
| KGD | UMKK | Khrabrovo Airport | Kaliningrad, Russia |
| KGF | UAKK | Sary-Arka Airport | Karaganda, Kazakhstan |
| KGG | GOTK | Kédougou Airport | Kédougou, Senegal |
| KGI | YPKG | Kalgoorlie-Boulder Airport | Kalgoorlie, Western Australia |
| KGL | HRYR | Kigali International Airport | Kigali, Rwanda |
| KGO | UKKG | Kirovograd | Kirovograd, Ukraine |
| KGP | USRK | Kogalym Airport | Kogalym, Tyumen Oblast, Russia |
| KGS | LGKO | Kos Island International Airport, Hippocrates | Antimachia, Kos, Greece |
| KGX | | Grayling Airport | Grayling, Alaska, United States |
| KGZ | | Glacier Creek Airport | Glacier Creek, Alaska, United States |
| KHC | | Kerch | Kerch, Ukraine |
| KHG | ZWSH | Kashgar Airport (Kashi Airport) | Kashgar, Xinjiang, Republic of China |
| KHH | RCKH | Kaohsiung International Airport | Kaohsiung, Taiwan |
| KHI | OPKC | Jinnah International Airport (Quaid | e-Azam International Airport) - Karachi, Pakistan |
| KHN | ZSCN | Nanchang Changbei International Airport | Nanchang, Jiangxi, People’s Republic of China |
| KHT | OAKS | Khost Airport | Khost, Afghanistan |
| KHV | UHHH | Khabarovsk Novy Airport | Khabarovsk, Russia |
| KIC | KKIC | Mesa Del Rey Airport | King City, California, United States |
| KIH | OIBK | Kish International Airport | Kish Island, Iran |
| KIJ | RJSN | Niigata Airport | Niigata, Japan |
| KIK | | Kirkuk | Kirkuk, Iraq |
| KIM | FAKM | Kimberley Airport | Kimberley, South Africa |
| KIN | MKJP | Norman Manley International Airport | Kingston, Jamaica |
| KIR | EIKY | Kerry Airport | Tralee, County Kerry, Ireland |
| KIV | LUKK | Chisinau International Airport | Chisinau, Moldova |
| KIX | RJBB | Kansai International Airport | Osaka, Japan |
| KJA | UNKL | Krasnoyarsk Yemelyanovo Airport | Krasnoyarsk, Russia |
| KJK | EBTK | Kortrijk-Wevelgem International Airport | Wevelgem, Belgium |
| KKA | PAKK | Koyuk Alfred Adams Airport | Koyuk, Alaska, United States |
| KKE | NZKK | Bay of Islands Airport | Kerikeri, New Zealand |
| KKN | ENKR | Kirkenes Airport, Høybuktmoen | Kirkenes, Finnmark, Norway |
| KKU | | Ekuk Airport | Ekuk, Alaska, United States |
| KLC | GOOK | Kaolack Airport | Kaolack, Senegal |
| KLD | UUEM | Mialovo Airport | Tver Oblast, Russia |
| KLE | FKKH | Kaélé Airport | Kaélé, Cameroon |
| KLF | | Kaluga Airport | Kaluga, Russia |
| KLG | PALG | Kalskag Airport | Kalskag, Alaska, United States |
| KLJ | EYKL | Klaipeda Airport | Klaipeda, Lithuania |
| KLN | PALB | Larsen Bay Airport (FAA: 2A3) | Larsen Bay, Alaska, United States |
| KLQ | BGKQ | Kullorsuaq Heliport | Kullorsuaq, Greenland |
| KLR | ESMQ | Kalmar Airport | Kalmar, Sweden |
| KLS | KKLS | Kelso-Longview Regional Airport | Kelso, Washington, United States |
| KLU | LOWK | Klagenfurt Airport | Klagenfurt, Austria |
| KLV | LKKV | Karlovy Vary Airport | Karlovy Vary, Czech Republic |
| KLW | PAKW | Klawock Airport | Klawock, Alaska, United States |
| KMG | ZPPP | Kunming Wujiaba International Airport | Kunming, the People's Republic of China |
| KMH | | Johan Pienaar Airport | Kuruman, South Africa |
| KMJ | RJFT | Kumamoto Airport | Kumamoto, Japan |
| KMK | FCPA | Makabana Airport | Makabana, Congo |
| KMP | FYKT | Keetmanshoop Airport | Keetmanshoop, Namibia |
| KMQ | RJNK | Komatsu Airport | Komatsu, Japan |
| KMS | DGSI | Kumasi Airport | Kumasi, Ghana |
| KMU | HCMK | Kisimayu Airport | Kisimayu, Somalia |
| KNA | SCRD | Aeropuerto Torquemada | Viña del Mar, Chile |
| KNB | KKNB | Kanab Municipal Airport | Kanab, Utah, United States |
| KNH | RCBS | Kinmen Airport | Kinmen, Taiwan |
| KNK | PFKK | Kokhanok Airport (FAA: 9K2) | Kokhanok, Alaska, United States |
| KNN | GUXN | Kankan Airport | Kankan, Guinea |
| KNS | YKII | King Island Airport | Currie, Tasmania, Australia |
| KNU | VIKA | Kanpur Airport | Kanpur, Uttar Pradesh, India |
| KNW | PANW | New Stuyahok Airport | New Stuyahok, Alaska, United States |
| KNX | YPKU | Kununurra Airport | Kununurra, Western Australia, Australia |
| KNZ | GAKA | Kenieba Airport | Kenieba, Mali |
| KOA | PHKO | Kona International Airport | Kailua/Kona, Hawaii, United States |
| KOI | EGPA | Kirkwall Airport | Kirkwall, Orkney Islands, United Kingdom |
| KOJ | RJFK | Kagoshima Airport | Kagoshima, Japan |
| KOT | PFKO | Kotlik Airport (FAA: 2A9) | Kotlik, Alaska, United States |
| KOV | | Kokshetau Airport | Kokshetau, Kazakhstan |
| KOW | ZSGZ | Ganzhou Huangjin Airport | Ganzhou, Jiangxi, China |
| KOZ | | Ouzinkie Airport | Ouzinkie, Alaska, United States |
| KPB | | Point Baker Airport | Point Baker, Alaska, United States |
| KPC | PAPC | Port Clarence Coast Guard Station | Port Clarence, Alaska, United States |
| KPH | | Pauloff Harbor Seaplane Base | Aleutians East Borough, Alaska, United States |
| KPI | WBGP | Kapit Airport | Sarawak, Malaysia |
| KPS | | Kempsey Airport | Kempsey, New South Wales, Australia |
| KPW | | Port Williams | Port Williams, Alaska, United States |
| KQB | | Koonibba Airport | Koonibba, South Australia, Australia |
| KRG | SYKS | Karasabai Airport | Karasabai, Guyana |
| KRK | EPKK | John Paul II International Airport | Kraków, Poland |
| KRM | SYKR | Karanambo Airport | Karanambo, Guyana |
| KRN | ESNQ | Kiruna Airport | Kiruna, Sweden |
| KRO | USUU | Kurgan Airport | Kurgan, Russia |
| KRP | EKKA | Karup Airport | Karup, Denmark |
| KRQ | | Kramatorsk | Kramatorsk, Ukraine |
| KRR | URKK | Pashkovsky Airport | Krasnodar, Russia |
| KRS | ENCN | Kristiansand Airport, Kjevik | Kristiansand, Vest-Agder, Norway |
| KRT | HSSS | Khartoum International Airport | Khartoum, Sudan |
| KSA | PTSA | Kosrae International Airport | Kosrae, Federated States of Micronesia |
| KSC | LZKZ | Košice Airport | Košice, Slovakia |
| KSD | ESOK | Karlstad Airport | Karlstad, Sweden |
| KSH | OICC | Kermanshah Airport | Kermanshah, Iran |
| KSI | GUKU | Kissidougou Airport | Kissidougou, Guinea |
| KSM | PASM | St. Mary's Airport | St. Mary's, Alaska, United States |
| KSN | UAUU | Kostanay Airport | Kostanay, Kazakhstan |
| KSS | GASK | Sikasso Airport | Sikasso, Mali |
| KSU | ENKB | Kristiansund Airport, Kvernberget | Kristiansund, Norway |
| KSW | LLKS | Qiryat Shemona Airport | Qiryat Shemona, Israel |
| KSY | LTCF | Kars Airport | Kars, Turkey |
| KTA | YPKA | Karratha Airport | Karatha, Australia |
| KTM | VNKT | Tribhuvan International Airport | Kathmandu, Nepal |
| KTN | PAKT | Ketchikan International Airport | Ketchikan, Alaska, United States |
| KTO | SYKT | Kato Airport | Kato, Guyana |
| KTP | MKTP | Tinson Pen Aerodrome | Kingston, Jamaica, Jamaica |
| KTS | PFKT | Brevig Mission Airport | Brevig Mission, Alaska, United States |
| KTT | EFKT | Kittilä Airport | Kittilä, Finland |
| KTW | EPKT | Katowice International Airport | Katowice, Poland |
| KTX | GAKO | Koutiala Airport | Koutiala, Mali |
| KUA | | Kuantan Airport | Pahang, Malaysia |
| KUF | UWWW | Samara Airport | Samara, Russia |
| KUK | PFKA | Kasigluk Airport (FAA: Z09) | Kasigluk, Alaska, United States |
| KUL | WMKK | Kuala Lumpur International Airport | Sepang (near Kuala Lumpur), Malaysia |
| KUN | EYKA | Kaunas International Airport | Kaunas, Lithuania |
| KUR | OARZ | Razer Airport | Kron Monjan, Afghanistan |
| KUS | BGKK | Kulusuk Airport | Kulusuk, Greenland |
| KUU | VIBR | Bhuntar Airport | Bhuntar, Himachal Pradesh, India |
| KUT | UGKO | Kopitnari Airport | Kutaisi, Georgia |
| KUV | RKJK | Gunsan Airport | South Korea |
| KVA | | Kavala Airport | Kavala, Greece |
| KVB | | Skövde Flygplats | Skövde, Sweden |
| KVC | | King Cove Airport | King Cove, Alaska, United States |
| KVK | | Kirovosk Airport | Russia |
| KVL | PAVL | Kivalina Airport | Kivalina, Alaska, United States |
| KWA | PKWA | Kwajalein Atoll Airport | Kwajalein, Marshall Islands |
| KWE | ZUGY | Guiyang Longdongbao Airport | Guiyang, Guizhou, China |
| KWH | OAHN | Khwahan Airport | Khwahan, Afghanistan |
| KWI | OKBK | Kuwait International Airport | Kuwait City, Kuwait |
| KWJ | | Gwangju Airport | Gwangju, South Korea |
| KWK | | Kwigillingok Seaplane Base | Kwigillingok, Alaska, United States |
| KWT | PFKW | Kwethluk Airport | Kwethluk, Alaska, United States |
| KXF | NFNO | Koro Airport | Koro Island, Fiji |
| KYA | LTAN | Konya Airport | Konya, Turkey |
| KYD | RCLY | Lanyu Airport | Orchid Island, Taitung County, Taiwan |
| KYK | PAKY | Karluk Airport | Karluk, Alaska, United States |
| KYS | GAKY | Kayes Airport | Kayes, Mali |
| KYU | PFKU | Koyukuk Airport | Koyukuk, Alaska, United States |
| KYZ | UNKY | Kyzyl Airport | Kyzyl, Tuva, Russia |
| KZI | LGKZ | Philippos Airport | Kozani, Greece |
| KZN | UWKD | Kazan International Airport | Kazan, Tatarstan, Russia |
| KZO | UAOO | Kyzylorda Airport | Kyzylorda, Kazakhstan |
| KZS | LGKJ | Kastelorizo Island Public Airport | Kastelorizo, Greece |